Description: [Said Celeborn,] 'Then I will furnish your Company with boats. They must be small and light, for if you go far by water, there are places where you will be forced to carry them. You will come to the rapids of Sarn Gebir, and maybe at last to the great falls of Rauros where the River thunders down from Nen Hithoel....'

The Fellowship of the Ring, LoTR Book 2, Ch 8, Farewell to Lórien

The chasm was long and dark, and filled with the noise of wind and rushing water and echoing stone. It bent somewhat towards the west so that at first all was dark ahead; but soon Frodo saw a tall gap of light before him, ever growing. Swiftly it drew near, and suddenly the boats shot through, out into a wide clear light. ...

The pent waters spread out into a long oval lake, pale Nen Hithoel, fenced by steep grey hills.... At the far southern end rose three peaks. The midmost stood somewhat forward from the others and sundered from them, an island in the waters, about which the flowing River flung pale shimmering arms. Distant but deep there came up on the wind a roaring sound like the roll of thunder heard far away.

'Behold Tol Brandir!' said Aragorn, pointing south to the tall peak. 'Upon the left stands Amon Lhaw, and upon the right is Amon Hen the Hills of Hearing and of Sight. ... I hear the endless voice of Rauros calling.'

hith 'mist' in Hithaeglir, Hithlum (also in Nen Hithoel, a lake in Anduin). Hithlum is Sindarin in form, adapted from the Quenya name Hísilómë given by the Noldorin exiles (Quenya hísië 'mist', cf. Hísimë, the name of the eleventh month of the year. The Lord of the Rings Appendix D). ...